Just as the Wichita, Kansas meteorologist, J.D. Rudd, was urging locals to bear down for the tornado, he is told, "It's our time to go".

The lone radar image was left on the screen, but the chaotic rush to safety is still heard from those in the station as they ran for cover.

The man instructing Rudd to take cover, says in the video, "in 20 years I have never said this", referring to the decision to evacuation during a live broadcast. Such a simple statement, but it puts the severity of yesterday's tornado into perspective.